package com.zrlh.file_trans_monitor.util;

import com.alibaba.fastjson.JSONObject;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.springframework.http.HttpEntity;

import java.awt.*;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

public class HttpRequest {
    public static String sendGet(String url, String param) {
        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;
            URL realUrl = new URL(urlNameString);
            // 打开和URL之间的连接
            URLConnection connection = realUrl.openConnection();
            // 设置通用的请求属性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 建立实际的连接
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.out.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送GET请求出现异常！" + e);
            e.printStackTrace();
        }
        // 使用finally块来关闭输入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }

    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("contentType", "application/json");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！" + e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result;
    }
    /*public static String sendJsonData(String urls, String jsonParam) {
        StringBuffer sb = new StringBuffer();
        try {
            // 创建url资源
            URL url = new URL(urls);
            // 建立http连接
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            // 设置允许输出
            conn.setDoOutput(true);
            // 设置允许输入
            conn.setDoInput(true);
            // 设置不用缓存
            conn.setUseCaches(false);
            // 设置传递方式
            conn.setRequestMethod("POST");
            // 设置维持长连接
            conn.setRequestProperty("Connection", "Keep-Alive");
            // 设置文件字符集:
            conn.setRequestProperty("Charset", "UTF-8");
            // 转换为字节数组
            byte[] data = jsonParam.getBytes();
            // 设置文件长度
            conn.setRequestProperty("Content-Length", String.valueOf(data.length));
            // 设置文件类型:
            conn.setRequestProperty("contentType", "application/json");
            // 开始连接请求
            conn.connect();
            PrintWriter out = new PrintWriter(conn.getOutputStream());
            // 写入请求的字符串
            out.write(jsonParam);
            out.flush();
            out.close();

            System.out.println(conn.getResponseCode());

            // 请求返回的状态
            if (HttpURLConnection.HTTP_OK == conn.getResponseCode()) {
                System.out.println("连接成功");
                // 请求返回的数据
                InputStream in1 = conn.getInputStream();
                try {
                    String readLine;
                    BufferedReader responseReader = new BufferedReader(new InputStreamReader(in1, "UTF-8"));
                    while ((readLine = responseReader.readLine()) != null) {
                        sb.append(readLine).append("\n");
                    }
                    responseReader.close();
                    System.out.println(sb);
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
            } else {
                System.out.println("error++");
            }
        } catch (Exception e) {
        }
        return sb.toString();
    }*/
    /*public static void sendPostJson(String ADD_URL, String obj){
        try {
            URL url = new URL(ADD_URL);
            HttpURLConnection http = (HttpURLConnection) url.openConnection();
            http.setDoOutput(true);
            http.setDoInput(true);
            http.setRequestMethod("POST");
            http.connect();
            OutputStreamWriter out = new OutputStreamWriter(http.getOutputStream(),
                    "UTF-8");

            //        String input = "data=[{\"Nianji\":\"高中2015届\",\"Banji\":\"元培书院\",\"Xuehao\":\"1525998\",\"Xingming\":\"姓名\",\"JianhurenShouji\":\"11111111111\",\"QingjiaLeixing\":\"病假\",\"KaishiShijian\":\"2014-05-24T00:00:00\",\"KaishiJie\":\"第1节\",\"JieshuShijian\":\"2014-05-24T00:00:00\",\"JieshuJie\":\"第1节\",\"QingjiaYuanyin\":\"原因\",\"key\":\"\",\"pagesize\":5}]";

            out.append(obj);
            out.flush();
            out.close();
            BufferedReader reader = new BufferedReader(new InputStreamReader(http.getInputStream()));
            String line;
            StringBuffer buffer = new StringBuffer();
            while ((line = reader.readLine()) != null) {
                buffer.append(line);
            }
            reader.close();
            http.disconnect();
            System.out.println(buffer.toString());
        } catch (Exception e) {
            System.out.println(e);
        }
    }*/
    public static String httpPostWithjson(String url, String json){
        String result = "";
        HttpPost httpPost = new HttpPost(url);
        CloseableHttpClient httpClient = HttpClients.createDefault();
        try {
            BasicResponseHandler handler = new BasicResponseHandler();
            StringEntity entity = new StringEntity(json, "utf-8");//解决中文乱码问题
            entity.setContentEncoding("UTF-8");
            entity.setContentType("application/json");
            httpPost.setEntity(entity);
            result = httpClient.execute(httpPost, handler);
            return result;
        } catch (Exception e) {
            e.printStackTrace();

        } finally {
            try {
                httpClient.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return result;
    }

}
